Ball valve for coal chemical industry

By incorporating a cleaning scraper and a graphite sealing ring structure within the ball valve body, the problems of deposits affecting the sealing and the sealing ring becoming stuck are solved, achieving both cleaning and sealing effects for media transport.

CN223459942UActive Publication Date: 2025-10-21TAIHONG VALVE TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202423147256.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-10-21
Estimated Expiration
2034-12-19

AI Technical Summary

Technical Problem

In the process of transporting media, the surface of the opening and closing parts of the existing ball valve is prone to media adhesion, which leads to a decrease in sealing performance. Furthermore, the rotation of the opening and closing parts can easily cause the sealing ring to jam and leak.

Method used

The cleaning scraper inside the ball valve body is designed to fit the spherical opening and closing parts to scrape off attachments, and the graphite sealing ring and spring seat structure are used to prevent the sealing ring from getting stuck. The open design of the mid-way gasket prevents the medium pressure from quickly entering the gap.

Benefits of technology

Effectively cleans the opening and closing parts of the device, prevents the sealing ring from getting stuck, ensures airtightness, prevents media leakage, and improves media transportation efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223459942U_ABST
    Figure CN223459942U_ABST
Patent Text Reader

Abstract

The utility model discloses a coal chemical industry ball valve, and relates to the technical field of chemical industry ball valves. The ball valve comprises a ball valve body, two ball valve supporting seats are symmetrically arranged in the ball valve body, a spherical opening and closing piece is rotationally arranged at the bottom in the ball valve body through a bearing seat and located between the two ball valve supporting seats, and a plurality of cleaning scrapers are symmetrically and fixedly connected to the inner walls of the ball valve supporting seats. The cleaning scrapers are attached to the circumferential side face of the spherical opening and closing piece, two middle gaskets are symmetrically and fixedly connected to the inner wall of the ball valve body and located on the two sides of the spherical opening and closing piece respectively, and the side faces, away from the spherical opening and closing piece, of the two middle gaskets are of an open structure. The spherical opening and closing part is driven to rotate, in the rotating process of the spherical opening and closing part, the cleaning scraper scrapes and cleans media attached to the peripheral side face of the spherical opening and closing part, cleaning of the peripheral side face of the spherical opening and closing part is achieved, and the situation that the media are attached to influence the sealing effect and cause medium leakage during transportation is avoided.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model belongs to the related technical field of chemical industry ball valve, in particular to a coal chemical industry ball valve. BACKGROUND

[0002] Ball valve is a common fluid control valve, and the fluid is controlled by rotating the ball to open and close, and the fluid resistance of the ball valve is relatively small in all valve classification, even if the fluid resistance of the reduced diameter ball valve is also very small, and the opening and closing action of the ball valve only needs to rotate 90 DEG, and the operation is simple and fast, and the structure is relatively simple, and the installation and maintenance are convenient, and because of its excellent performance and wide application range, it is widely used in many industry fields.

[0003] The common ball valve structure realizes the ball valve communication or cut-off by controlling the rotation of the opening and closing part during the medium conveying process, and then controls the medium conveying, but in the actual use process, the opening and closing part is in long-time contact with the medium, the medium is easy to adhere to the side surface of the opening and closing part, the sealing property of the ball valve is affected, and in the rotation process of the opening and closing part, the opening and closing part extrudes the sealing ring, and the sealing ring is easy to be stuck and then cause the medium leakage. Therefore, the coal chemical industry ball valve is provided to solve the above technical problems. UTILITY MODEL CONTENTS

[0004] The utility model discloses a coal chemical industry ball valve, and the specific structural design of the ball valve body, the cleaning scraper and the middle way gasket solves the problems in the above background technology.

[0005] To solve the above technical problems, the utility model is realized through the following technical schemes:

[0006] The utility model discloses a coal chemical industry ball valve, which comprises a ball valve body, two ball valve support seats are symmetrically arranged in the ball valve body, a spherical opening and closing part is rotatably arranged in the bottom of the ball valve body through a bearing seat, and the spherical opening and closing part is located between the two ball valve support seats.

[0007] The utility model further sets up, the ball valve body both ends respectively are equipped with medium inlet and medium outlet, the ball valve body peripheral surface is equipped with the adjusting mouth, the ball valve body peripheral surface fixedly connected with adjusting support frame, adjusting support frame is equipped with the packing of sliding on the side away from the ball valve body, the packing upper surface is equipped with packing gland closely, packing gland is fixedly connected with adjusting support frame through the stud.

[0008] The utility model further sets up, the adjusting support frame end fixedly connected with drive frame body, drive frame body lower surface rotationally connected with valve rod, valve rod and spherical opening and closing spare between fixed connection, drive frame body one side rotationally connected with hand wheel, drive frame body inner wall rotationally connected with drive worm, drive worm and hand wheel between fixed connection, drive frame body inner bottom rotationally connected with transmission worm wheel, transmission worm wheel and valve rod between fixed connection, and transmission worm wheel and drive worm are engaged.

[0009] The utility model further sets up, the ball valve support seat opposite both sides all are equipped with valve seat spring groove, two graphite seal rings are symmetrically set up in valve seat spring groove, and the reset spring is fixedly connected between two graphite seal rings, the first spring seat is fixedly connected in valve seat spring groove one inner wall, and the first spring seat is fixedly connected between one graphite seal ring, and the second spring seat is fixedly connected on the one side of the middle way gasket, and the second spring seat is fixedly connected between the other graphite seal ring.

[0010] The utility model further sets up, the inside wall of spherical opening and closing spare is equipped with blowdown, and the blowdown valve is installed in the inside.

[0011] The utility model has the advantages of the following:

[0012] 1, the utility model discloses a spherical opening and closing spare and cleaning scraper are set up, in the medium conveying process, when rotating spherical opening and closing spare, because the fixed position of cleaning scraper and the adhesion of spherical opening and closing spare peripheral surface, utilize the cleaning scraper to scrape and clean spherical opening and closing spare peripheral surface, to this realization to spherical opening and closing spare peripheral surface adhering medium cleaning, avoid the influence of medium residue to the airtightness.

[0013] 2, the utility model discloses that graphite seal ring, first spring seat and second spring seat are set up, in the rotating process of spherical opening and closing spare, spherical opening and closing spare extrude ball valve support seat, and then drive first spring seat and second spring seat synchronous extrusion, and graphite seal ring is adjusted by external force, to this avoid in the rotating process of spherical opening and closing spare, graphite seal ring jamming causes the medium leakage situation.

[0014] 3. The utility model discloses a middle way gasket one side is set to open -type structure, avoid because medium viscosity is bigger medium delivery harsh condition, medium pressure cannot quickly and effectively enter small gap, in this way convenient medium quick and effective transport.

[0015] Of course, implementing any product of the utility model does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be to the embodiment description needed to use the drawing briefly introduced, obviously, the following description in the drawing is only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, still can obtain other drawings according to these drawings.

[0017] Figure 1 It is a kind of coal chemical industry ball valve longitudinal structure and sectional view.

[0018] Figure 2 It is Figure 1 Partial enlarged view at A.

[0019] Figure 3 It is Figure 1 Partial enlarged view at B.

[0020] Figure 4 It is Figure 1 Partial enlarged view at C.

[0021] In the drawing, the component list represented by each sign is as follows:

[0022] 1-ball valve body, 2-ball valve support seat, 3-spherical opening and closing part, 4-cleaning scraper, 5-middle way gasket, 6-adjusting support frame, 7-packing, 8-packing gland, 9-driving frame body, 10-valve stem, 11-hand wheel, 12-graphite seal ring, 13-return spring, 14-first spring seat, 15-second spring seat, 16-blowdown valve. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] Specific embodiment one, please refer to Figures 1-4The utility model discloses a coal chemical industry ball valve, including ball valve body 1, specifically, the inside symmetry of ball valve body 1 is provided with two ball valve support seat 2, the bottom of ball valve body 1 is rotatably provided with spherical opening and closing piece 3 through bearing seat, control spherical opening and closing piece 3 rotation, when spherical opening and closing piece 3 is connected with ball valve body 1 and carries out medium delivery, and spherical opening and closing piece 3 is located between two ball valve support seat 2.

[0025] Further, the inner wall of the ball valve support seat 2 is symmetrically fixedly connected with a plurality of cleaning scrapers 4, the cleaning scrapers 4 are all in close contact with the peripheral side surface of the spherical opening and closing piece 3, and when the spherical opening and closing piece 3 rotates, the cleaning scrapers 4 are used to scrape off the attachments on the peripheral side surface of the spherical opening and closing piece 3.

[0026] Further, the inner wall of the ball valve body 1 is symmetrically fixedly connected with two middle-way gaskets 5, the two middle-way gaskets 5 are located on the two sides of the spherical opening and closing piece 3 respectively, and the side surface of the middle-way gasket 5 away from the spherical opening and closing piece 3 is of an open structure, so that the medium pressure cannot quickly and effectively enter the small gap due to the viscosity of the delivered medium and the like, and the medium is not top-kicked between the gaps, and the open design facilitates the quick and effective entry of the medium into the small gap.

[0027] The operation process of the embodiment is as follows: in the medium delivery process, when the peripheral side surface of the spherical opening and closing piece 3 is in close contact with the inner wall of the ball valve body 1, the ball valve body 1 is cut off by the spherical opening and closing piece 3, and the medium cannot be delivered, when the medium needs to be delivered, the spherical opening and closing piece 3 is driven to rotate, when the spherical opening and closing piece 3 is in communication with the ball valve body 1, the medium moves from one end of the ball valve body 1 to the spherical opening and closing piece 3 through the ball valve body 1, and then flows to the other end of the ball valve body 1 through the spherical opening and closing piece 3, so as to realize the delivery of the medium, and in the rotating process of the spherical opening and closing piece 3, the cleaning scrapers 4 are used to scrape off the attachments on the peripheral side surface of the spherical opening and closing piece 3 with the rotation of the spherical opening and closing piece 3.

[0028] Specific embodiment two, please refer to Figures 1-4 On the basis of the specific embodiment one, specifically, the ball valve body 1 is respectively provided with a medium inlet and a medium outlet at two ends, the ball valve body 1 is provided with an adjusting opening on the peripheral side surface, and the ball valve body 1 is fixedly connected with an adjusting support frame 6 on the peripheral side surface; a packing 7 is slidably arranged on the side surface of the adjusting support frame 6 away from the ball valve body 1, a packing gland 8 is arranged in close contact with the upper surface of the packing 7, the packing gland 8 is fixedly connected with the adjusting support frame 6 through a stud, the packing 7 is extruded by controlling the downward movement of the packing gland 8, and the ball valve body 1 is kept in a closed state by the packing 7.

[0029] Further, the end of the supporting frame 6 is fixedly connected with a driving frame 9, the lower surface of the driving frame 9 is rotatably connected with a valve rod 10, the valve rod 10 is fixedly connected with the spherical opening and closing part 3, one side surface of the driving frame 9 is rotatably connected with a hand wheel 11; the inner wall of the driving frame 9 is rotatably connected with a driving worm, the driving worm is fixedly connected with the hand wheel 11, the inner bottom of the driving frame 9 is rotatably connected with a transmission worm, the transmission worm is fixedly connected with the valve rod 10, and the transmission worm is engaged with the driving worm, and rotating the hand wheel 11 makes the driving worm rotate synchronously, under the engagement of the driving worm and the transmission worm, the transmission worm rotates synchronously and further drives the valve rod 10 to rotate.

[0030] Further, the valve seat spring grooves are formed in the opposite two side surfaces of the ball valve supporting seat 2, two graphite sealing rings 12 are symmetrically arranged in the valve seat spring grooves, and a return spring 13 is fixedly connected between the two graphite sealing rings 12; a first spring seat 14 is fixedly connected to an inner wall of the valve seat spring groove, the first spring seat 14 is fixedly connected with one of the graphite sealing rings 12, a second spring seat 15 is fixedly connected to one side surface of the middle gasket 5, and the second spring seat 15 is fixedly connected with the other one of the graphite sealing rings 12.

[0031] Further, a blowdown port is formed in the inner wall of the spherical opening and closing part 3, a blowdown valve 16 is installed in the blowdown port, the blowdown valve 16 is controlled to open and close, the residual medium in the spherical opening and closing part 3 is discharged, and part of the medium is prevented from remaining in the inner wall of the spherical opening and closing part 3 to affect the subsequent medium conveying.

[0032] The operation process of the embodiment is as follows: in the initial state, the peripheral surface of the spherical opening and closing part 3 is attached to the inner wall of the ball valve body 1, so that the ball valve body 1 is in a cut-off state, and the medium cannot flow, when the medium needs to be conveyed, the hand wheel 11 is rotated to drive the driving worm to rotate synchronously, under the engagement of the driving worm and the driving worm, the driving worm rotates synchronously, the valve rod 10 is driven to rotate by the driving worm, and further drives the spherical opening and closing part 3 to rotate, when the spherical opening and closing part 3 rotates by 90°, the spherical opening and closing part 3 is communicated with the ball valve body 1, the medium flows from the medium inlet of the ball valve body 1 to the spherical opening and closing part 3, and then flows out from the medium outlet of the ball valve body 1 through the spherical opening and closing part 3, so as to realize the conveying of the medium.

[0033] Since the cleaning scraper 4 is fixedly arranged and attached to the peripheral surface of the spherical opening and closing part 3, the cleaning scraper 4 scrapes and cleans the medium adhered to the peripheral surface of the spherical opening and closing part 3 during the rotation of the spherical opening and closing part 3, and during the rotation of the spherical opening and closing part 3, the spherical opening and closing part 3 extrudes the ball valve supporting seat 2, under the limitation of the middle gasket 5, the first spring seat 14 and the second spring seat 15 are synchronously extruded, the graphite sealing ring 12 is adjusted accordingly, and the situation that the spring fails and the graphite sealing ring 12 is stuck to cause medium leakage is avoided due to harsh working conditions such as medium viscosity and general equation design.

[0034] In the description of the present specification, the description referring to the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The preferred embodiments of the present application disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details and limit the present application to the specific embodiments described. Obviously, according to the content of the present specification, many modifications and changes can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that the persons skilled in the art can well understand and utilize the present application. The present application is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A coal chemical ball valve, comprising a ball valve body (1), characterized in that: the ball valve body (1) is internally and symmetrically provided with two ball valve support seats (2), the bottom of the ball valve body (1) is rotationally provided with a spherical opening and closing part (3) through a bearing seat, and the spherical opening and closing part (3) is located between the two ball valve support seats (2); the inner wall of the ball valve support seat (2) is symmetrically and fixedly connected with a plurality of cleaning scrapers (4), the cleaning scrapers (4) are all in close contact with the peripheral side surface of the spherical opening and closing part (3), and when the spherical opening and closing part (3) rotates, the cleaning scrapers (4) are used to scrape off the attachments on the peripheral side surface of the spherical opening and closing part (3); the inner wall of the ball valve body (1) is symmetrically and fixedly connected with two middle gaskets (5), the two middle gaskets (5) are respectively located on the two sides of the spherical opening and closing part (3), and the side surface of the two middle gaskets (5) away from the spherical opening and closing part (3) is of an open structure.

2. The coal chemical ball valve according to claim 1, characterized in that, the two ends of the ball valve body (1) are respectively provided with a medium inlet and a medium outlet, the peripheral side surface of the ball valve body (1) is provided with an adjusting opening, and the peripheral side surface of the ball valve body (1) is fixedly connected with an adjusting support frame (6).

3. The coal chemical ball valve according to claim 2, characterized in that, the side surface of the adjusting support frame (6) away from the ball valve body (1) is slidably provided with a packing (7), the upper surface of the packing (7) is tightly provided with a packing gland (8), and the packing gland (8) is fixedly connected with the adjusting support frame (6) through a stud.

4. The coal chemical ball valve according to claim 3, characterized in that, the end of the adjusting support frame (6) is fixedly connected with a driving frame body (9), the lower surface of the driving frame body (9) is rotationally connected with a valve rod (10), the valve rod (10) is fixedly connected with the spherical opening and closing part (3), and the side surface of the driving frame body (9) is rotationally connected with a hand wheel (11).

5. The coal chemical ball valve according to claim 4, characterized in that, the inner wall of the driving frame body (9) is rotationally connected with a driving worm, the driving worm is fixedly connected with the hand wheel (11), the inner bottom of the driving frame body (9) is rotationally connected with a transmission worm, the transmission worm is fixedly connected with the valve rod (10), and the transmission worm is engaged with the driving worm.

6. The coal chemical ball valve according to claim 5, characterized in that, the opposite side surfaces of the ball valve support seat (2) are both provided with a valve seat spring groove, the valve seat spring groove is internally and symmetrically provided with two graphite sealing rings (12), and the two graphite sealing rings (12) are fixedly connected with a return spring (13).

7. The coal chemical ball valve according to claim 6, characterized in that, a first spring seat (14) is fixedly connected with one of the graphite sealing rings (12), a second spring seat (15) is fixedly connected with the other graphite sealing ring (12), and the side surface of the middle gasket (5) is fixedly connected with the second spring seat (15).

8. The coal chemical ball valve according to claim 6, characterized in that, the inner wall of the spherical opening and closing part (3) is provided with a blowdown opening, and the blowdown opening is internally provided with a blowdown valve (16).